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SERVICE ACCESSORIES 9711OJ Technical Documentation

NHC­1/4 NHE­1/4 NHK­1/4 NHB­2 19­1 Copyright © Nokia Mobile Phones

Contents of Service Accessories
Service Accessories Audio Cable ADS­1 Power Connector PCS­1 PC/MBUS Adapter DAU­2 SW Security Device "Dongle" PKD­1 Dummy Battery Pack BTS­4 Service Cable SCS­1 RF Adapter to Top Antenna Connector (not PCN) Battery Adapter BDS­2 Test Frame JBS­8 Service Box JBS­7 Flash Prommer FPS­3 Modular Cable XCM­1 Modular T­Adapter D9/D25 RS­232 Adapter Antenna Key ART­3 19­2 19­2 19­2 19­3 19­3 19­4 19­4 19­5 19­5 19­6 19­7 19­8 19­9 19­9 19­10 19­10

SERVICE ACCESSORIES 9711OJ Technical Documentation

NHC­1/4 NHE­1/4 NHK­1/4 NHB­2 19­2 Copyright © Nokia Mobile Phones

Service Accessories
Audio Cable ADS­1
Product code: 0730011

Audio cable is an adapter routing AF signals (MIC/EAR) from 8 pin modular connector to two BNC connectors.

Power Connector PCS­1
Product code: 0730012

Suitable adapter between JBS­7 and the power supply.

SERVICE ACCESSORIES 9711OJ Technical Documentation

NHC­1/4 NHE­1/4 NHK­1/4 NHB­2 19­3 Copyright © Nokia Mobile Phones

PC/MBUS Adapter DAU­2
Product code: 0750006

DAU­2 is connected between the phone and the serial (COM) port of the PC. It matches the M2BUS data bus signals to the serial data bus of the computer.

SW Security Device PKD­1
Product code: 0750018

SW security device PKD­1 is a piece of hardware enabling the use of the Service Software when connected to the parallel (LPT) port of the PC. Without the PKD­1 being present it is not possible to use the Service SW. Printer or any such device can be connected to the PC through the PKD­1 if needed.

Caution: Make sure thet you have switched off the PC and the printer before making connections! Caution: Do not connected the PKD­1 to the serial port. You may damage your PKD­1!

SERVICE ACCESSORIES 9711OJ Technical Documentation

NHC­1/4 NHE­1/4 NHK­1/4 NHB­2 19­4 Copyright © Nokia Mobile Phones

Dummy Battery Pack BTS­4
Product code: 0770009

Dummy battery is convenient device when the battery reference voltage is to be programmed. JBS­7 has a voltage setting for supplying specified reference voltage needed for this programming. Of course the BTS can be used to substitute the normal battery also during normal testing, and optionally the input d.c. may be taken from some external power supply. However, one should take care not to exceed the voltage rating of the phone.

Service Cable SCS­1
Product code: 0770010

Service cable SCS­1 is an adapter routing RF signal(s) from phone bottom connector to two BNC connectors. It also contains modular connector that can be used to service purpoces.

SERVICE ACCESSORIES 9711OJ Technical Documentation

NHC­1/4 NHE­1/4 NHK­1/4 NHB­2 19­5 Copyright © Nokia Mobile Phones

RF Adapter to Top Antenna Connector (not PCN)
Product code: 0770011

AAS­3 provides a connection from top antenna connector to the measurement device. The accuracy of the connection is not as good as with bottom antenna connector.

Battery Adapter BDS­2
Product code: 0770013

Battery adapter is used when the condition of the battery pack is to be tested with either internal discharging feature, or with external capacity meter. It provides a suitable mechanical interface for charging and discharging.

SERVICE ACCESSORIES 9711OJ Technical Documentation

NHC­1/4 NHE­1/4 NHK­1/4 NHB­2 19­6 Copyright © Nokia Mobile Phones

Test Frame JBS­8
Product code: 0770014

JBS­8 is used when the service work must be done without covers in the phone. The phone's radio module is placed into plastic frame, which provides the needed connections to the bottom­ and battery connectors of the phone. RF connection is done by RF cable, which is as well included into the JBS­8. Suitable d.c. power supply regulation for JBS­8 concept is provided by example JBS­7. Note, that the UI module (flex) is not required in this enviroment. Note also, that some of the signal values give wrong results when RF shields are removed. Hence the phone should never be tuned without the shields.

SERVICE ACCESSORIES 9711OJ Technical Documentation

NHC­1/4 NHE­1/4 NHK­1/4 NHB­2 19­7 Copyright © Nokia Mobile Phones

Service Box JBS­7
Product code: 0770015

Service box provides convenient test enviroment (regulated power supply, M2BUS, preset battery reference voltage, external RF connection, audio test loops, HOOK switch etc.) and mechanical interface in one box. When AUDIO switch of JBS­7 is INT position, the AF signals are routed normally to the modular­type system connectors. When in EXT position, the AF signals are routed from the speaker pin of the bottom connector straght back to the external microphone pin of the phone. Thus the speech codec of the phone is able to feed the internally generated test signal to the loudspeaker line, and measure the same signal from the EXT MIC line. Whenever audio signals are to be monitored or measured outside the phone, the AUDIO switch of the JBS­7 must be in INT position. HOOK switch of the JBS­7 enables the audio signals to be routed to and from the phone via the bottom connector also when the phone is in cellular mode, for example during a test call to some cellular tester. When HOOK switch is in OFF position and the phone in cellular mode, the audios are always routed to earpiece and internal microphone. Additionally JBS­7 has a spare battery slot, though which the battery may be connected to external capacity meter.

Note:

When tuning the NHC­1 analog mode maximum power, do not use more than 10 volts d.c. in the power supply input of the JBS­7.

SERVICE ACCESSORIES 9711OJ Technical Documentation

NHC­1/4 NHE­1/4 NHK­1/4 NHB­2 19­8 Copyright © Nokia Mobile Phones

Flash Prommer FPS­3
Product code: 0770017

FLASH prommer is used to update the main software of the phone, should that some day become necessary. Updating is done by first loading the new MCU software from PC to the FLASH prommer and then loading the new SW from prommer to the phone. When updating more than one phone in a row, the new MCU SW must be loaded to the prommer only in the beginning. Service software (called also PC Locals) is used to control the functions of the phone with IBM compatible PC/286 or higher or compatible personal computer during the service work. PC and PC Locals are maybe the most important service tools nowadays.

SERVICE ACCESSORIES 9711OJ Technical Documentation

NHC­1/4 NHE­1/4 NHK­1/4 NHB­2 19­9 Copyright © Nokia Mobile Phones

Modular Cable XCM­1
Product code: 4626131

XCM­1 is a standard 1 meter long flat cable with male modular­8 connectors in both ends. In a complete service concept three pieces of the XCM­1 is needed.

Modular T­Adapter
Product code: 4626134

Modular T­adapter is suitable branching unit to provide the needed parallel modular connections.

SERVICE ACCESSORIES 9711OJ Technical Documentation

NHC­1/4 NHE­1/4 NHK­1/4 NHB­2 19­10 Copyright © Nokia Mobile Phones

D9/D25 RS­232 Adapter
Product code: 4626170

Suitable adapter between DAU­2 and computers having 9 pin D connector as a serial port.

Antenna Key ART­3 (not used with NHE­4, NHK­4, NHC­4 and NHB­2)
Product code: 9580015

Antenna key ART­3 should be used when removing antenna from the phone.